Take into account that the ratio of one loaf of pumpkin to cups of raisins is
1 : 1 3/4
1 3/4 can be written as follow:
1 3/4 = 1 + 3/4 = (4+3)/4 = 7/4
then, the ratio is:
1 : 7/4
For 10 cups of raisins, it is necessary that the previous ratio is equal, then, if x is the number of loaves can be made with 10 cups, you have:
x : 10
the previous ratios can be written as fractions, 1/7/4 = 4/7 and x/10 respectively. Equal these fractions and solve for x:
4/7 = x/10
(4/7)(10) = x
40/7 = x
x = 40/7 ≈ 6
Hence, approximately 6 loaves of bread can be made with 10 cups of raisins.